My source for this is the video "The Cream of Eric Clapton" which has a live
performance of this song, so it might be in a different key than the album
version, and it might be simpler.

(By the by, the people who made this video somehow managed to turn gold
into shit, overall, but this one song makes it almost worth the price of
admission. The playout solo is all closeup of EC's fingers on the fret-
board, so if you're a novice like me who isn't great at playing leads,
then this is a big help.)